tight end davis says harbaugh energy and drive is contagious. >> his energy is so high. he keep it that way. which is a good thing because we can all feed off that. >>reporter: this is last time harbaugh will hold a news conference before heading out to new orleans. last tame players can express their expectations. kicker david acres has had a rough year. he says he's ready. >> team obviously has faith in me. they kept me hereth i'm going to good out. get everything i have every time. >>reporter: back up tight end walker says practicing in santa clara and thinking about going to his first superbowl seems a bit unreal. >> i think once we get to new orleans and start practicing outside the box i think it will start hitting us. >>reporter: offensive line man boone has been warned by superbowl veteran not to let the spectacle of the superbowl affect his focus. >> there is a time where are we smraiing game today or out for cop certificate. map stay focused at all times. >>reporter: anything but normal game. 49ers will practice again saturday and head off to new orleans on sun